January in Kwidzyn is the snowiest and the coldest month of the year. In January, the weather in Kwidzyn is typically freezing. Average daily high temperature in January is about zero. On average, Kwidzyn has 12 cloudy, 9 partly cloudy, 5 rainy, 3 sunny, and 2 snowy days in January. The rains are usually light. January as well as February, March, April, and October is considered the most uncomfortable time to visit Kwidzyn.